Table 1.
Characteristics of the 32 Studies
| Study characteristic | k | % |
|---|---|---|
| Type of sampling | ||
| Convenience | 29 | 90.6 |
| Random | 3 | 9.4 |
| Country of sample | ||
| United States | 19 | 59.4 |
| Country other than United States | 13 | 40.6 |
| Type of sample | ||
| HIV treatment center patients | 16 | 50.0 |
| Other health center/hospital patients | 4 | 12.5 |
| HIV service/advocacy organization participants | 4 | 12.5 |
| Other | 5 | 15.6 |
| Not reported | 3 | 9.4 |
| Gender of participants | ||
| Men | 7 | 21.9 |
| Women | 1 | 3.1 |
| Men and women | 24 | 75.0 |
| Predominant race (>50%) | ||
| White | 9 | 28.1 |
| Black/African American | 8 | 25.0 |
| Asian | 2 | 6.3 |
| Hispanic | 1 | 3.1 |
| Mixed (none greater than 50%) | 7 | 21.9 |
| Not reported | 5 | 15.6 |
k, number of studies; HIV, human immune deficiency virus.